This brings to mind two different artists: Marc Rebillet and Binkbeats. You’ll find live performances of both of them on Youtube.

Marc uses a MIDI keyboard to control a MacBook running MainStage (which is like a performance rack of Logic instruments.) He has a his favourite instruments, drum kits picked out in advance so he can flip through them with his keyboard. He records the output of his laptop into a Boss RC-505.

He controls loops coming in and out. While improvising funk/soul music. He does a lot of long youtube streams. With much practice, he’s become very good at it. Here’s his run down, (NSFW - his persona swears a bit.) https://www.youtube.com/watch?v=vw3sNtqe5R0

Binkbeats uses Ableton Live running on a laptop. He laptop will be running a session that has MIDI clips previously mapped out to loopback control messages that determine how long to run each loop, etc. This is very technical and impressive, but doesn’t leave a lot of room for error or freeform improvisation. (You predetermine the length of sections.) Here is a mini-doc on his set up: https://www.youtube.com/watch?v=Ya9VaE7dE6E

Zoe Keating is a cellist that does a similar method to Binkbeats. She’s using SooperLooper in Ableton Live, controlled with a soft-step triggering MIDI dummy clips through the IAC bus to control Ableton. Someone else to check out.

If you want your looper to know when to turn itself off, that commits you to decisions made ahead of time.

I hope this helps peak behind the curtain of a few different directions.

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